JP3411789B2 - Mounting device for rotary work equipment in work equipment - Google Patents
Mounting device for rotary work equipment in work equipmentInfo
- Publication number
- JP3411789B2 JP3411789B2 JP19849897A JP19849897A JP3411789B2 JP 3411789 B2 JP3411789 B2 JP 3411789B2 JP 19849897 A JP19849897 A JP 19849897A JP 19849897 A JP19849897 A JP 19849897A JP 3411789 B2 JP3411789 B2 JP 3411789B2
- Authority
- JP
- Japan
- Prior art keywords
- rotary
- retaining pin
- mounting
- rotary shaft
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Soil Working Implements (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は，歩行用耕うん機等
の作業機におけるロータリ作業器具の取付装置に関する
ものである。
【０００２】
【従来の技術】従来歩行用耕うん機では，ドライブシヤ
フトに連動されるロータリシヤフトに，ロータリ作業爪
を取り付けた取付ホルダーを着脱自在に取り付けるの
に，その取付ホルダーの中空軸部をロータリシヤフトに
嵌合し，それらに抜止めピンを串刺し状に差し込むこと
により行うようにするのが一般的である。
【０００３】
【発明が解決しようとする課題】ところで耕うん機は圃
場等にて耕うん作業等を行なっているうちに，取付ホル
ダーの中空軸部の外周面には，草，藁，ビニール紐等の
異物が絡み付いて，そこに次第に堆積し，遂には作業に
支障を及ぼすようになるので，その絡み付いた異物を取
り除く必要がある。そこでその絡み付いた異物を取り除
くために，ロータリシヤフトより取付ホルダーを取り外
すべく，抜止めピンを抜き取る作業が必要となるが，こ
の抜止めピン上にも前記異物が絡み付いているため，そ
の抜き取り作業がきわめて厄介な作業となり，これが作
業能率を低下させる大きな原因となるという課題があ
る。
【０００４】本発明はかかる事情に鑑みてなされたもの
で，作業器具の取付ホルダーに，絡み付いた異物が堆積
していても難なく抜止めピンを抜き取り，取付ホルダー
をロータリシヤフトより取り外すことができるようにし
て前記課題を解決した，新規な作業機におけるロータリ
作業器具の取付装置を提供することを目的とするもので
ある。
【０００５】
【課題を解決するための手段】前記目的達成のため，本
発明によれば，ドライブシヤフトに連動されるロータリ
シヤフトに，ロータリ作業器具の取付ホルダーの中空軸
部を抜差自在に嵌合し，前記中空軸部とロータリシヤフ
トとに跨がって抜止めピンを差し込むことによりロータ
リシヤフトに取付ホルダーを着脱自在に連結するように
した作業機におけるロータリ作業器具の取付装置におい
て，前記取付ホルダーの中空軸部には，外端が開口され
且つ内端が行き止まりの２条のスパイラル溝が径方向に
対向して設けられ，前記抜止めピンは前記２条のスパイ
ラル溝を貫通して前記中空軸部とロータリシヤフトとに
跨がって差し込まれ，前記２条のスパイラル溝は，前記
ロータリシャフトが作業方向に回転するときに前記抜止
めピンが該２条のスパイラル溝に沿ってその内方に移動
してそれら溝の内端に係合するように，該抜止めピンを
案内し，前記ロータリシヤフトの作業方向の回転時に
は，前記２条のスパイラル溝の内端に前記抜止めピンが
係合することで取付ホルダーとロータリシヤフトとが一
体回転され，また前記ロータリシヤフトを固定した状態
で前記取付ホルダーをロータリシヤフトの作業方向へ空
転させることにより，前記スパイラル溝が抜止めピンよ
り外れて取付ホルダーをロータリシヤフトより抜き取る
ことができるようにしたことを特徴としている。
【０００６】かかる構成によれば，ロータリシャフトが
作業方向に回転するときに抜止めピンが，２条のスパイ
ラル溝に案内されてその内方に移動して該溝の内端に係
合し，この係合により取付ホルダーはロータリシヤフト
に堅固に一体化されるから，該取付ホルダーに取り付け
られるロータリ作業器具を回転させて作業を支障なく行
なうことができる。そしてこのロータリ作業器具の回転
を継続すれば，抜止めピンは益々強くスパイラル溝の内
端部に係合してロータリシヤフトと取付ホルダーとが堅
固に一体化され，能率のよい作業を遂行することができ
る。
【０００７】またロータリシヤフトを固定した状態で取
付ホルダーをロータリシヤフトの作業方向へ空転させる
ことにより，スパイラル溝が抜止めピンより外れて取付
ホルダーをロータリシヤフトより抜き取ることができ，
取付ホルダーや抜止めピンに絡みつく草，藁，紐等の異
物を簡単，容易に取り除くことができる。
【０００８】またこのロータリ作業器具の取付装置は，
既製の作業機に簡単に装備することが可能である。
【０００９】
【発明の実施の形態】以下，本発明の実施の形態を，添
付図面に示した本発明の実施例に基づいて説明する。
【００１０】図１は，本発明装置を備えた歩行型耕うん
機の全体側面図，図２は，その耕うん機の全体平面図，
図３は，その耕うん機のパワーユニット部の側面図，図
４はその耕うん機の耕うん部の平面図，図５は，図４の
５矢視のロータリ作業爪の取付部の拡大図，図６は，図
５の６−６線に沿う断面図，図７は，ロータリ作業爪の
取付部の分解斜視図である。
【００１１】図１，２において，歩行型耕うん機Ｃは，
フレームの枠組により構成される機体Ｆの前部に，パワ
ーユニットＵｐが支持され，またその中央部の下端にロ
ータリ作業爪Ｒが着脱可能に軸架され，さらにその後部
に尾輪ユニットＵｔが昇降調節可能に支持されている。
【００１２】図３，４に示すように，前記パワーユニッ
トＵｐは，バーチカル型エンジンＥの下部に，クラッチ
を介して連動される歯車伝動装置Ｔを一体に懸吊して構
成され，この歯車伝動装置Ｔには，その出力軸に連結さ
れる車軸Ｓが回転自在に軸架され，この車軸Ｓに一対の
走行輪Ｗが固着される。前記歯車伝動装置Ｔの動力取出
部には，機体Ｆの下部フレーム内に設けられるドライブ
シヤフト１が連結され，このドライブシヤフト１は機体
Ｆの下部フレーム内を後方に延び，その後端に動力分配
機構１０を介して左右に延びる左右ロータリシヤフト
２，２が連結される。
【００１３】図５〜７に示すように，各ロータリシヤフ
ト２，２の基部には，その中心軸線と直交して両端開口
のピン孔３，３が穿設されている。そして前記左右ロー
タリシヤフト２，２には，左右取付ホルダー４，４の中
空軸部４1 ，４1 がそれぞれ着脱自在に嵌合連結され
る。前記中空軸部４1 ，４1 には，その軸方向に間隔を
あけて複数の取付板５…が固着されており，これらの取
付板５…にはそれぞれロータリ作業器具すなわちロータ
リ作業爪Ｒ…が取り付けられる。前記取付ホルダー４，
４の中空軸部４1 ，４1 の内端部には，２条のスパイラ
ル溝７，７が略１８０°の位相差を存して穿設され，こ
れらのスパイラル溝７，７は，その外端７1 が中空軸部
４1 ，４1 の内端縁に開口され，またその内端７2 は円
弧状の行き止まり係合部を形成している。
【００１４】左右のロータリシヤフト２，２に，複数の
ロータリ作業爪Ｒ…を設けた左右取付ホルダー４，４を
それぞれ連結するには，左右ロータリシヤフト２，２
に，それらの外端より，左右取付ホルダー４，４の中空
取付軸４1 ，４1 をそれぞれ嵌合してピン孔３と２条の
スパイラル溝７，７とを一致させ，それらに跨がって抜
止めピン８，８を串刺し状に差し込み，各抜止めピン８
の内端に割りピン９を差し込む。これにより左右ロータ
リシヤフト２，２に左右取付ホルダー４，４がそれぞれ
抜止めピン８，８によりピン連結される。そして各抜止
めピン８は，２条のスパイラル溝７，７内に摺動可能に
係合され，左右ロータリシヤフト２，２が正転すなわち
ダウンカット方向（図５，矢印ａ方向）に回転すると
き，各抜止めピン８は，２条のスパイラル溝７，７に沿
って内方に移動してそれらの内端７2，７2 に係合して
左右ロータリシヤフト２，２と左右取付ホルダー４，４
とが一体回転し，また左右ロータリシヤフト２，２を固
定して，左右取付ホルダー４，４を正転方向（前進方
向）に空転するとき，その抜止めピン８は２条のスパイ
ラル溝７，７に沿って外方に相対移動してその外端７1
から外れるようになっている。
【００１５】なお，図中，符号Ｈは操作ハンドル，符号
１２はロータリ作業爪カバー，１３はならし板である。
【００１６】次にこの実施例の作用について説明する
に，いま前述したように左右ロータリシヤフト２，２
に，ロータリ作業爪Ｒ…を取り付けた左右取付ホルダー
４，４を抜止ピン８，８によりそれぞれピン連結し，耕
うん機Ｃを圃場に持ち込んで耕うん作業をすべく耕うん
機Ｃを運転すれば，駆動輪Ｗが回転駆動され，また作業
機用クラツチのＯＮ制御によるドライブシヤフト１の回
転駆動により動力分配機構１０を介して左右ロータリシ
ヤフト２，２が正転（図１，５，矢印ａ方向）され，抜
止めピン８，８を介して左右取付ホルダー４，４も同方
向に回転される。このとき各抜止めピン８は，２条のス
パイラル溝７，７に案内されてその内方に移動して図
４，５に示すようにそのスパイラル溝７，７の内端
７2 ，７2 に係合して左右取付ホルダー４，４は，左右
ロータリシヤフト２，２に堅固に一体化され，これによ
り左右取付ホルダー４，４にそれぞれ取り付けられる複
数のロータリ作業爪Ｒ…はダウンカット回転されて耕う
ん作業を支障なく行なうことができる。そしてこの場合
左右取付ホルダー４，４が正転方向すなわちロータリ作
業爪Ｒ…のダウンカット方向の回転を継続すれば，抜止
めピン８は益々強くスパイラル溝７，７の内端部７2 ，
７2 に係合して左右ロータリシヤフト２，２と，左右取
付ホルダー４，４とが堅固に一体化され，能率のよい耕
うん作業を遂行することができる。
【００１７】ところで耕うん作業の継続により，左右取
付ホルダー４，４，特にその中空軸部４1 ，４1 に，前
述したように次第に草，藁，ビニール紐等の異物が絡み
付いてそこに堆積し，遂には耕うん作業に支障を及ぼす
に至れば，耕うん機Ｃの運転を停止したのち，その機体
Ｆを持ち上げた状態で，左右取付ホルダー４，４を，固
定状態の左右ロータリシヤフト２，２に対して一方向す
なわち前進方向（ロータリ爪Ｒの正転方向と同方向）に
空転すれば，２条のスパイラル溝２，２は，抜止めピン
８に沿い，その抜止めピン８に対して外方に移動して左
右取付ホルダー４，４をそれぞれ外方に抜き取ることが
でき，抜止めピン８，８も左右ロータリシヤフト２，２
から抜き取ることができ，左右取付ホルダー４，４およ
び抜止めピン８に絡みついている前記異物を容易に取り
除くことができる。
【００１８】その後，前述のように左右ロータリシヤフ
ト２，２に，左右取付ホルダー４，４を抜止めピン８に
より連結して，再度耕うん作業を行なうことができる。
【００１９】なお，以上の作用では，ロータリ作業爪の
正転すなわちダウンカットにより耕うん作業を行なう場
合について説明したが，ロータリ作業爪の逆転すなわち
アップカットにより耕うん作業を行なう場合には，左右
の取付ホルダー４，４を，右左のロータリシヤフト２，
２にそれぞれ付け替えるだけで前記と全く同じ作用を遂
行させることができる。
【００２０】以上，本発明の一実施例について説明した
が，本発明はその実施例に限定されることなく，本発明
の範囲内で種々の実施例が可能である。たとえば前記実
施例では，耕うん機に本発明を実施した場合について説
明したが，これを他の作業機にも実施することができる
ことは勿論である。
【００２１】
【発明の効果】以上のように本発明によれば，ロータリ
シャフトが作業方向に回転するときに抜止めピンが，２
条のスパイラル溝に案内されてその内方に移動して該溝
の内端に係合し，この係合により取付ホルダーはロータ
リシヤフトに堅固に一体化されるようにしたので，該取
付ホルダーに取り付けられるロータリ作業器具を回転さ
せて作業を支障なく行なうことができ，そして，このロ
ータリ作業器具の回転を継続すれば，抜止めピンは益々
強くスパイラル溝の内端部に係合してロータリシヤフト
と取付ホルダーとが堅固に一体化されるから，能率のよ
い作業を遂行することができる。
【００２２】またロータリシヤフトを固定した状態で取
付ホルダーをロータリシヤフトの作業方向へ空転させる
ことにより，スパイラル溝が抜止めピンより外れて取付
ホルダーをロータリシヤフトより抜き取ることができる
から，取付ホルダーや抜止めピンに絡みつく草，藁，紐
等の異物を簡単，容易に取り除くことができ，作業能率
の大幅アップに寄与することができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting a rotary work implement in a working machine such as a tiller for walking. 2. Description of the Related Art In a conventional cultivator for walking, a mounting shaft with a rotary working claw is removably mounted on a rotary shaft linked to a drive shaft. It is common practice to fit the shafts and insert a retaining pin into them in a skewered manner. [0003] By the way, while the tiller is performing tillage work or the like in a field or the like, the outer peripheral surface of the hollow shaft portion of the mounting holder is made of grass, straw, vinyl string, or the like. Foreign matter is entangled and gradually accumulates there, and eventually interferes with work, so it is necessary to remove the entangled foreign matter. Therefore, in order to remove the entangled foreign matter, it is necessary to remove the retaining pin in order to remove the mounting holder from the rotary shaft. However, since the foreign matter is also entangled on the retaining pin, the removal operation is required. There is a problem that the work becomes extremely troublesome, and this is a major cause of reducing work efficiency. The present invention has been made in view of the above circumstances, and even if foreign matter entangled in a mounting holder of a work implement is accumulated, the retaining pin can be easily removed and the mounting holder can be removed from the rotary shaft. SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for mounting a rotary working tool in a new working machine which has solved the above-mentioned problems. According to the present invention, to achieve the above object, according to the present invention, a hollow shaft portion of a mounting holder of a rotary working tool is removably fitted to a rotary shaft interlocked with a drive shaft. The mounting device for a rotary working tool in a working machine in which a mounting pin is detachably connected to the rotary shaft by inserting a retaining pin over the hollow shaft portion and the rotary shaft. the hollow shaft portion of the holder, the outer end is opened
And the inner end is provided opposite to the spiral groove radial Article 2 dead ends, the fixing pin is plugged straddling and the hollow shaft portion through the spiral grooves and the rotary shear shift of the Article 2 And the two spiral grooves are
When the rotary shaft rotates in the working direction,
Female pin moves inward along the two spiral grooves
The retaining pin so that it engages with the inner ends of the grooves.
Guide, and wherein the time of rotation of the working direction of the rotary shear shift, the mounting holder by the fixing pin to the inner end of the spiral groove of the two rows are <br/> engagement with the rotary shear shift is rotated integrally and the With the rotary shaft fixed
Check in the mounting holder to the working direction of the rotary shear shift
By turning , the spiral groove is disengaged from the retaining pin so that the mounting holder can be removed from the rotary shaft . According to this configuration, the rotary shaft is
When rotating in the working direction, the retaining pin
Guided by the radial groove and moved inward to engage with the inner end of the groove.
And the mounting holder is rotated by this engagement.
To the mounting holder
Rotating rotary work tools
Can be. And the rotation of this rotary work implement
, The retaining pin will become stronger and stronger in the spiral groove.
Engage the end to secure the rotary shaft and mounting holder
It is tightly integrated and can perform efficient work
You. [0007] By rotating the mounting holder in the working direction of the rotary shaft while the rotary shaft is fixed , the spiral groove is detached from the retaining pin and mounted.
The holder can be removed from the rotary shaft,
Foreign matter such as grass, straw, and string entangled with the mounting holder and retaining pin can be easily and easily removed. [0008] The mounting device for the rotary working tool is
It can be easily installed on ready-made working machines. Embodiments of the present invention will be described below based on embodiments of the present invention shown in the accompanying drawings. FIG. 1 is an overall side view of a walking type tiller having the device of the present invention, FIG. 2 is an overall plan view of the tiller,
FIG. 3 is a side view of the power unit of the tiller, FIG. 4 is a plan view of the tiller of the tiller, FIG. 5 is an enlarged view of a mounting portion of the rotary work claw as viewed in the direction of arrow 5 in FIG. Is a sectional view taken along line 6-6 in FIG. 5, and FIG. 7 is an exploded perspective view of a mounting portion of the rotary working claw. In FIGS. 1 and 2, a walking tiller C is
A power unit Up is supported at a front portion of a body F constituted by a frame of a frame, a rotary work claw R is detachably mounted on a lower end of a central portion thereof, and a tail wheel unit Ut is adjusted up and down at a rear portion thereof. Supported as possible. As shown in FIGS. 3 and 4, the power unit Up is constructed by integrally suspending a gear transmission T interlocked via a clutch below a vertical engine E. An axle S connected to the output shaft is rotatably mounted on T, and a pair of running wheels W is fixed to the axle S. A drive shaft 1 provided in a lower frame of the body F is connected to a power take-out portion of the gear transmission T. The drive shaft 1 extends rearward in the lower frame of the body F and has a power distribution mechanism at a rear end thereof. The left and right rotary shafts 2 and 2 extending to the left and right are connected via 10. As shown in FIGS. 5 to 7, pin holes 3 and 3 having openings at both ends are formed in the base portions of the rotary shafts 2 and 2 at right angles to the central axis. And wherein the left and right rotary shear shift 2,2, hollow shaft portion 4 1, 4 1 of the left and right mounting holder 4, 4 are detachably fitted and connected respectively. Wherein the hollow shaft portion 4 1, 4 1, at intervals in the axial direction are fixed a plurality of mounting plates 5 ..., these mounting plates 5 ... respectively rotary working tool ie rotary working claw to R ... Is attached. The mounting holder 4,
The inner end portion of the hollow shaft portion 4 1, 4 1 of 4, spiral grooves 7, 7 of the two rows is bored by exist a phase difference of about 180 °, these spiral grooves 7, 7, the the outer end 71 is open to the hollow shaft portion 4 1, 4 1 of the inner edge, also the inner end 7 2 that forms a dead-end engaging portion of the arcuate. In order to connect the left and right mounting shafts 4, 4 provided with a plurality of rotary working claws R to the left and right rotary shafts 2, 2, respectively.
To, from their outer ends, it is matched with the spiral grooves 7, 7 of the pin holes 3 and 2 Article hollow mounting shaft 4 1 of the left and right mounting holder 4,4, 4 1 a fitting respectively engaged with, straddle them And insert the retaining pins 8 and 8 in a skewered manner.
Insert the split pin 9 into the inner end of the. As a result, the left and right mounting holders 4, 4 are connected to the left and right rotary shafts 2, 2 by the retaining pins 8, 8, respectively. Each retaining pin 8 is slidably engaged in the two spiral grooves 7, 7, and the left and right rotary shafts 2, 2 rotate in the forward direction, that is, in the down-cut direction (FIG. 5, direction of arrow a). At this time, each retaining pin 8 moves inward along the two spiral grooves 7, 7 and engages with the inner ends 7 2 , 7 2 thereof so that the left and right rotary shafts 2, 2 and the left and right mounting holders are engaged. 4,4
When the right and left rotary shafts 2 and 2 are fixed and the left and right mounting holders 4 and 4 are idled in the normal rotation direction (forward direction), the retaining pins 8 are provided with two spiral grooves 7 and Relative to the outside along 7 and its outer end 7 1
It comes out of the. In the drawings, reference numeral H denotes an operation handle, reference numeral 12 denotes a rotary work claw cover, and reference numeral 13 denotes a leveling plate. Next, the operation of this embodiment will be described. As described above, the right and left rotary shafts 2, 2
Then, the left and right mounting holders 4 and 4 with the rotary work claws R are connected to the respective pins by retaining pins 8 and 8, and the tiller C is brought into the field and the tiller C is operated to perform the tillage operation. The wheels W are driven to rotate, and the right and left rotary shafts 2 and 2 are rotated forward (in the directions of arrows a and 5 in FIG. 1 and FIG. 5) via the power distribution mechanism 10 by the rotation of the drive shaft 1 by ON control of the work machine clutch. The right and left mounting holders 4, 4 are also rotated in the same direction via the retaining pins 8, 8. At this time, each retaining pin 8 is guided by the two spiral grooves 7, 7 and moves inward, and as shown in FIGS. 4 and 5, the inner ends 7 2 , 7 2 of the spiral grooves 7, 7 And the left and right mounting holders 4 and 4 are firmly integrated with the left and right rotary shafts 2 and 2, whereby the plurality of rotary working claws R attached to the left and right mounting holders 4 and 4 are down-cut and rotated. Tillage work can be performed without hindrance. In this case, if the left and right mounting holders 4 and 4 continue to rotate in the normal rotation direction, that is, in the down-cut direction of the rotary working claws R..., The retaining pin 8 becomes stronger and stronger at the inner ends 7 2 and 7 2 of the spiral grooves 7 and 7.
7 2 and left and right rotary shear shift 2,2 engage the left and right and the mounting holders 4, 4 are firmly integrated, it is possible to perform good tilling work with efficiency. [0017] By the way by continuing tilling work, the right and left mounting holder 4,4, particularly in the hollow shaft portion 4 1, 4 1, deposited thereon gradually grass As described above, straw, foreign matter such as vinyl cord entangled When the tillage operation is finally hindered, the operation of the tillage machine C is stopped, and then the left and right mounting holders 4 and 4 are moved to the fixed left and right rotary shafts 2 and 2 while the body F is lifted. On the other hand, if the wheel runs idle in one direction, that is, in the forward direction (the same direction as the normal rotation direction of the rotary claw R), the two spiral grooves 2 and 2 extend along the retaining pin 8 and move outward with respect to the retaining pin 8. And the right and left mounting holders 4 and 4 can be pulled out respectively.
And the foreign matter entangled with the left and right mounting holders 4 and 4 and the retaining pin 8 can be easily removed. Thereafter, the left and right rotary shafts 2, 2 are connected to the left and right mounting holders 4, 4 by the retaining pins 8 as described above, and the tillage operation can be performed again. In the above operation, the case where the plowing operation is performed by rotating the rotary working claw forward, that is, by down-cutting, has been described. Rotate the right and left rotary shafts 2
The same operation as described above can be performed simply by replacing each of the two. Although one embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various embodiments are possible within the scope of the present invention. For example, in the above-described embodiment, the case where the present invention is applied to a tiller is described. However, it goes without saying that the present invention can be applied to other working machines. As described above, according to the present invention, the rotary
When the shaft rotates in the working direction,
Is guided by the spiral groove of the strip and moves inward to
The mounting holder engages the inner end of the rotor.
Because it was firmly integrated with the reshft,
Turn the rotary work implement attached to the
Work can be carried out without any trouble.
If the rotation of the work tool continues, the retaining pin
The rotary shaft is strongly engaged with the inner end of the spiral groove.
And the mounting holder are tightly integrated.
Work can be performed. By rotating the mounting holder in the working direction of the rotary shaft with the rotary shaft fixed , the spiral groove is detached from the retaining pin and mounted.
Ru can be withdrawn from the rotary shear shift the holder
From grass entangling on the mounting holder and the retaining pin, straw, foreign substances such as string simple, can be easily removed, it can contribute significantly up work efficiency.
【図面の簡単な説明】
【図１】本発明装置を備えた歩行型耕うん機の全体側面
図
【図２】その耕うん機の全体平面図
【図３】その耕耘機のパワーユニット部の側面図
【図４】その耕うん機の耕うん部の平面図
【図５】図４の５矢視のロータリ作業爪の取付部の拡大
図
【図６】図５の６−６線に沿う断面図
【図７】ロータリ作業爪の取付部の分解斜視図
【符号の説明】
１・・・・・・・・・・・ドライブシヤフト
２・・・・・・・・・・・ロータリシヤフト
４・・・・・・・・・・・取付ホルダー
４1 ・・・・・・・・・・中空軸部
７・・・・・・・・・・・スパイラル溝
８・・・・・・・・・・・抜止ピン
Ｒ・・・・・・・・・・・ロータリ作業器具（ロータリ
作業爪）BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a walking-type tiller equipped with the device of the present invention. FIG. 2 is an overall plan view of the tiller. FIG. 3 is a side view of a power unit portion of the tiller. FIG. 4 is a plan view of a cultivating part of the cultivator. FIG. 5 is an enlarged view of a mounting part of a rotary work claw as viewed in the direction of arrow 5 in FIG. 4 FIG. 6 is a sectional view taken along line 6-6 in FIG. ] Exploded perspective view of the mounting part of the rotary work claw [Explanation of reference numerals] 1 ... Drive shaft 2 ... Rotary shaft 4 ... ...... mounting holder 4 1 .......... hollow shaft portion 7 ........... spiral grooves 8 ........... retaining Pin R: Rotary work tool (rotary work claw)
Claims (1)
ータリシヤフト（２）に，ロータリ作業器具（Ｒ）の取
付ホルダー（４）の中空軸部（４1 ）を抜差自在に嵌合
し，前記中空軸部（４1 ）とロータリシヤフト（２）と
に跨がって抜止めピン（８）を差し込むことによりロー
タリシヤフト（１）に取付ホルダー（４）を着脱自在に
連結するようにした作業機におけるロータリ作業器具の
取付装置において， 前記取付ホルダー（４）の中空軸部（４1 ）には，外端
が開口され且つ内端が行き止まりの２条のスパイラル溝
（７，７）が径方向に対向して設けられ，前記抜止めピ
ン（８）は前記２条のスパイラル溝（７，７）を貫通し
て前記中空軸部（４1 ）とロータリシヤフト（２）とに
跨がって差し込まれ，前記２条のスパイラル溝（７，
７）は，前記ロータリシャフト（２）が作業方向に回転
するときに前記抜止めピン（８）が該２条のスパイラル
溝（７，７）に沿ってその内方に移動してそれら溝
（７，７）の内端に係合するように，該抜止めピン
（８）を案内し， 前記ロータリシヤフト（２）の作業方向の回転時には，
前記２条のスパイラル溝（７，７）の内端に前記抜止め
ピン（８）が係合することで取付ホルダー（４）とロー
タリシヤフト（２）とが一体回転され，また前記ロータリシヤフト（２）を固定した状態で前記
取付ホルダー（４）をロータリシヤフト（２）の作業方
向へ空転させることにより，前記スパイラル溝（７，
７）が抜止めピン（８）より外れて取付ホルダー（４）
をロータリシヤフト（２）より抜き取ることができるよ
うにしたことを特徴とする，作業機におけるロータリ作
業器具の取付装置。(1) A hollow shaft portion (4 1 ) of a mounting holder (4) of a rotary working tool (R) is attached to a rotary shaft (2) interlocked with a drive shaft ( 1 ). Is inserted into the rotary shaft (4) so as to be detachable, and a retaining pin (8) is inserted across the hollow shaft portion (4 1 ) and the rotary shaft (2) to thereby attach the mounting holder (4) to the rotary shaft (1). in mounting apparatus of rotary working tool in the detachably connected to as to the working machine, wherein the hollow shaft portion of the attachment holder (4) (4 1), the outer end is opened and the inner end 2 of Article dead end Spiral grooves (7, 7) are provided so as to face each other in the radial direction, and the retaining pin (8) penetrates through the two spiral grooves (7, 7) to be in contact with the hollow shaft portion (4 1 ). It plugged straddling a rotary shear shift (2), the Article 2 Spiral groove (7,
7) The rotary shaft (2) rotates in the working direction.
When the retaining pin (8) is
Move inward along the grooves (7, 7)
(7, 7) so that the retaining pin is engaged with the inner end of the retaining pin.
(8), and when the rotary shaft (2) rotates in the working direction,
Wherein the fixing pin to the inner end of the two rows of spiral grooves (7,7) (8) is rotated and attached holder (4) and the rotary shear shift (2) is integrally by engaging and said rotary shear shift ( 2) Fixing the mounting holder (4) with the rotary shaft (2) in a fixed state.
By spinning in the direction, the spiral groove (7,
7) comes off the retaining pin (8) and the mounting holder (4)
A rotary work implement in a work machine, characterized in that the work implement can be extracted from the rotary shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19849897A JP3411789B2 (en) | 1997-07-24 | 1997-07-24 | Mounting device for rotary work equipment in work equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19849897A JP3411789B2 (en) | 1997-07-24 | 1997-07-24 | Mounting device for rotary work equipment in work equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1132501A JPH1132501A (en) | 1999-02-09 |
| JP3411789B2 true JP3411789B2 (en) | 2003-06-03 |
Family
ID=16392137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19849897A Expired - Lifetime JP3411789B2 (en) | 1997-07-24 | 1997-07-24 | Mounting device for rotary work equipment in work equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3411789B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771424A (en) * | 2017-10-01 | 2018-03-09 | 河南田冠农业机械制造有限公司 | It is a kind of can farming straw tiller |
-
1997
- 1997-07-24 JP JP19849897A patent/JP3411789B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1132501A (en) | 1999-02-09 |
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